KNAACK 4in Caster Set- 4-Pk 1600-Lb Capacity Polypropylene Wheels Model# 495;

' Caster Set w/Brakes, Width (In.) 2, Height (In.) 4, Material Steel and Solid Polypropylene, Black, 1600 lb. Load Rating, For Use With 13R503, 13R510, 13R514, 13R515, 13R516, 13R517, 13R518, 13R520, 13R522, 13R523, 13R524, 13R525, 13R526, 13R527, 13R528, 13R530, 13R531, 13R532, 13R533, 13R534, 13R535, G4049412, Includes (2) Rigid and (2) Swivel Casters '